An omnidirectional broad-bandwidth microstrip array antenna is proposed, fabricated, and tested. The operating bandwidth of the antenna with usable broadside radiation patterns is about 1910 MHz (2.75-4.66 GHz), which is quite suitable for the application of the WiMAX 3.5-GHz system. The overall dimension of the antenna comes around 550 × 10 × 0.85 mm3. This antenna has the advantages of simple configuration, low profile, compactness, and low fabrication cost. Microwave experiments and numerical simulations are performed to demonstrate its functionalities.
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Jiu‐sheng Li (2011) studied this question.
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